﻿/* =============================================================
* bootstrap-collapse.js v2.0.4
* http://twitter.github.com/bootstrap/javascript.html#collapse
* =============================================================
* Copyright 2012 Twitter, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================================================ */


!function ($) {

	"use strict"; // jshint ;_;


	/* COLLAPSE PUBLIC CLASS DEFINITION
	* ================================ */

	var Collapse = function (element, options) {
		this.$element = $(element)
		this.options = $.extend({}, $.fn.collapse.defaults, options)

		if (this.options.parent) {
			this.$parent = $(this.options.parent)
		}

		this.options.toggle && this.toggle()
	}

	Collapse.prototype = {

		constructor: Collapse

  , dimension: function () {
  	var hasWidth = this.$element.hasClass('width')
  	return hasWidth ? 'width' : 'height'
  }

  , show: function () {
  	var dimension
        , scroll
        , actives
        , hasData

  	if (this.transitioning) return

  	dimension = this.dimension()
  	scroll = $.camelCase(['scroll', dimension].join('-'))
  	actives = this.$parent && this.$parent.find('> .accordion-group > .in')

  	if (actives && actives.length) {
  		hasData = actives.data('collapse')
  		if (hasData && hasData.transitioning) return
  		actives.collapse('hide')
  		hasData || actives.data('collapse', null)
  	}

  	this.$element[dimension](0)
  	this.transition('addClass', $.Event('show'), 'shown')
  	this.$element[dimension](this.$element[0][scroll])
  }

  , hide: function () {
  	var dimension
  	if (this.transitioning) return
  	dimension = this.dimension()
  	this.reset(this.$element[dimension]())
  	this.transition('removeClass', $.Event('hide'), 'hidden')
  	this.$element[dimension](0)
  }

  , reset: function (size) {
  	var dimension = this.dimension()

  	this.$element
        .removeClass('collapse')
        [dimension](size || 'auto')
        [0].offsetWidth

  	this.$element[size !== null ? 'addClass' : 'removeClass']('collapse')

  	return this
  }

  , transition: function (method, startEvent, completeEvent) {
  	var that = this
        , complete = function () {
        	if (startEvent.type == 'show') that.reset()
        	that.transitioning = 0
        	that.$element.trigger(completeEvent)
        }

  	this.$element.trigger(startEvent)

  	if (startEvent.isDefaultPrevented()) return

  	this.transitioning = 1

  	this.$element[method]('in')

  	$.support.transition && this.$element.hasClass('collapse') ?
        this.$element.one($.support.transition.end, complete) :
        complete()
  }

  , toggle: function () {
  	this[this.$element.hasClass('in') ? 'hide' : 'show']()
  }

	}


	/* COLLAPSIBLE PLUGIN DEFINITION
	* ============================== */

	$.fn.collapse = function (option) {
		return this.each(function () {
			var $this = $(this)
        , data = $this.data('collapse')
        , options = typeof option == 'object' && option
			if (!data) $this.data('collapse', (data = new Collapse(this, options)))
			if (typeof option == 'string') data[option]()
		})
	}

	$.fn.collapse.defaults = {
		toggle: true
	}

	$.fn.collapse.Constructor = Collapse


	/* COLLAPSIBLE DATA-API
	* ==================== */

	$(function () {
		$('body').on('click.collapse.data-api', '[data-toggle=collapse]', function (e) {
			var $this = $(this), href
        , target = $this.attr('data-target')
          || e.preventDefault()
          || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') //strip for ie7
        , option = $(target).data('collapse') ? 'toggle' : $this.data()
			$(target).collapse(option)
		})
	})

} (window.jQuery);